14 Result(s)
within
Jonny Rutqvist
Geotechnical Engineering & Applied Earth Sciences
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Article
Open AccessLong-term sinking of nuclear waste canisters in salt formations by low-stress creep at high temperature
Rock salt has a self-sealing capacity, low permeability, and high thermal conductivity, making it a potential host for heat-generating nuclear waste. The feasibility of nuclear waste disposal within salt forma...
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Article
Open AccessTOUGH3-FLAC3D: a modeling approach for parallel computing of fluid flow and geomechanics
The recent development of the TOUGH3 code allows for a faster and more reliable fluid flow simulator. At the same time, new versions of FLAC3D are released periodically, allowing for new features and faster ex...
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Article
Guest editorial for the topical collection: geomechanics for deep resource and energy exploitation
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Article
Guest Editorial to the CouFrac 2018 Special Issue Coupled Thermal-Hydro-Mechanical-Chemical Processes in Fractured Media: Microscale to Macroscale Numerical Modeling
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Article
Finite volume modeling of coupled thermo-hydro-mechanical processes with application to brine migration in salt
The disposal of heat-generating nuclear waste in salt host rock generates a thermal gradient around the waste package that may cause brine inclusions in the salt grains to migrate toward the waste package. In ...
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Article
Open AccessMicroscale mechanical modeling of deformable geomaterials with dynamic contacts based on the numerical manifold method
Micromechanical modeling of geomaterials is challenging because of the complex geometry of discontinuities and potentially large number of deformable material bodies that contact each other dynamically. In thi...
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Chapter
TOUGH-Based Hydraulic Fracturing Models
This chapter provides a brief overview of TOUGH-based hydraulic fracturing models, including application examples to demonstrate their capabilities. These models are all based on the linking of geomechanics co...
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Chapter and Conference Paper
Deep Fracture Zone Reactivation During CO2 Storage at In Salah (Algeria) – A Review of Recent Modeling Studies
We present a review of numerical studies aimed at understanding the conditions leading to the reactivation of a deep fracture zone, as well as thermal effects, at the In Salah CO2 Storage Project. Numerical simul...
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Article
Coupled Processes Modeling in Rock Salt and Crushed Salt Including Halite Solubility Constraints: Application to Disposal of Heat-Generating Nuclear Waste
This paper presents numerical modeling of coupled thermal, hydraulic and mechanical processes in rock salt and crushed salt considering halite solubility constraints. The TOUGH-FLAC simulator is used, with a r...
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Article
Fully coupled hydro-mechanical numerical manifold modeling of porous rock with dominant fractures
Coupled hydro-mechanical (HM) processes are significant in geological engineering such as oil and gas extraction, geothermal energy, nuclear waste disposal and for the safety assessment of dam foundations and ...
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Chapter
ISRM Suggested Method for Step-Rate Injection Method for Fracture In-Situ Properties (SIMFIP): Using a 3-Components Borehole Deformation Sensor
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Article
Open AccessThe Northwest Geysers EGS Demonstration Project, California: Pre-stimulation Modeling and Interpretation of the Stimulation
The Northwest Geysers Enhanced Geothermal System (EGS) demonstration project aims to create an EGS by directly and systematically injecting cool water at relatively low pressure into a known High Temperature (...
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Article
Open AccessThe Geomechanics of CO2 Storage in Deep Sedimentary Formations
This paper provides a review of the geomechanics and modeling of geomechanics associated with geologic carbon storage (GCS), focusing on storage in deep sedimentary formations, in particular saline aquifers. T...
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Article
Open AccessA New Coal-Permeability Model: Internal Swelling Stress and Fracture–Matrix Interaction
We have developed a new coal-permeability model for uniaxial strain and constant confining-stress conditions. The model is unique in that it explicitly considers fracture–matrix interaction during coal-deforma...
